Which supplement works better to decrease fatigue: l-carnitine or vitamin b1 (thiamine)?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
L-Carnitine
Vitamin B1 (Thiamine)

Effectiveness Rating: L-Carnitine vs Vitamin B1 (Thiamine)

The effectiveness rating is a measure of the supplements' ability to decrease fatigue. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up vitamin b1 (thiamine) to decrease fatigue is much better than the evidence backing up l-carnitine. Vitamin B1 (Thiamine) should provide positive results while l-carnitine will not.

Confidence Rating: L-Carnitine vs Vitamin B1 (Thiamine)

Another factor to take into account when comparing supplements is the confidence rating. This rating is a measure of how valid each supplement's effectiveness rating is. Remember, the confidence rating is a measure of how much you can trust the effectiveness rating. This rating is based on how many studies are included in the database on a supplement's claims. Ideally, you want a high effectiveness AND confidence rating.

Both l-carnitine and vitamin b1 (thiamine) have low confidence ratings. This means neither supplement has an adequate amount of research to back up this claim. A low confidence rating questions the validity of the effectiveness rating.